A native of Ann Arbor, Mich., and a child actor there, Muchnick was educated
at the University of Michigan and Eastern Michigan University.

Head of his own management firm since 1980, Muchnick
represented such celebrities as Richard Gere, Joseph Mascolo, Clifton Davis,
Lesley Ann Warren and Marian Mercer.

Muchnick worked in New York
during the 1960s and 1970s, where he was house manager of New York's Helen
Hayes Theatre and later co-artistic director of the URGENT Theatre Company,
which produced off-Broadway plays.

He died at 56 on January 4, 1994,
in Los Angeles for AIDS complications.